I made my kids bookmarks. I bought some cheap, cute material and cut it into bookmark sized strips, then glued it to posterboard. Then I wrote a little message on the posterboard side...something about "KEEP READING! I'll miss you!" (I also put my picture on this side since I got like 20 for free from picture day...what else was I going to do with them?!) Then I laminated the bookmarks. Last step was writing each child's name on the fabric side with puff paint.
My kids loooved their bookmarks. They liked that the fabric matched their interests (sports, animals, princess, etc) and they liked that they each got a special message from me.
It's cheap. It's crafty. It's useable. :-D That's my kind of gift! haha